206106717 has 8 divisors (see below), whose sum is σ = 277377696. Its totient is φ = 136120112.

The previous prime is 206106707. The next prime is 206106757. The reversal of 206106717 is 717601602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206106717 - 2¹¹ = 206104669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206106707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320718 + ... + 321359.

It is an arithmetic number, because the mean of its divisors is an integer number (34672212).

Almost surely, 2^206106717 is an apocalyptic number.

It is an amenable number.

206106717 is a deficient number, since it is larger than the sum of its proper divisors (71270979).

206106717 is a wasteful number, since it uses less digits than its factorization.

206106717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642187.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 206106717 is about 14356.4172759084. The cubic root of 206106717 is about 590.6960252650.

The spelling of 206106717 in words is "two hundred six million, one hundred six thousand, seven hundred seventeen".